Abstract
The LaFeO3 polycrystalline feed rod was prepared by sintering La2O3 and Fe2O3 powder at 1400 °C for 24 h. The LaFeO3 crystal was grown by the floating zone method. The crystal preferred to crystallize along <100> direction. The X-ray rocking curve of the (100) crystal plane has a FWHM of 26 arcsec, confirming the high crystal quality of the sample. Some voids were observed on the polished surface. The thermal properties of LaFeO3 crystal during 298~773 K were tested. The specific heat of LaFeO3 crystal variation range was 0.58~0.76 J/(g·K), The thermal diffusivity of LaFeO3 crystal variation range was 3.47~0.85 mm2/s, The thermal conductivity of LaFeO3 crystal variation range was 13.10~4.21 W/(m·K).
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